老高考適用2023高考英語一輪總復(fù)習(xí)第一編教材回眸Unit19Language課件北師大版

Unit19Language自主排查夯基固本fluencyfluentfluentlyaccuracyaccurateaccuratelythankthankfulthanklessabsenceabsentattainattainmentattainablesurroundsurroundingsurroundingsadequateinadequateensureaccelerateaccelerationenlargelargeguaranteeadjustadjustableadjustmentinforminformationcongratulatecongratulationexplicitexplicitlyunconsciousconscioustighttightenresembleresemblancenegotiatenegotiationoffenceoffendapprovalapproveapplicantapplicationapplycompetencecompetent王室的；皇家的全國性地

折疊；交叉

趨勢；傾向目標(biāo)

輕拍；拍僵硬的清晰易辨的；透明的不安

只；僅僅購買模棱兩可的候選人

準(zhǔn)時的；守時的全體職員absencepunctuallycongratulationsapprovalacquisitionnegotiationapplicantinformationregulationsembarrassing突出；顯眼

取得成功；獲得進(jìn)步某人不在的時候?qū)W會；流行congratulatesbonsth

以……的形式出現(xiàn)/存在

consistofonpurposeontheotherhandadjust...toontheotherhandonpurposegetaheadcatchontook/takestheformofadjusttoconsistsofcongratulateonintheabsenceofhimstandoutThereisnopointcomplainingnowhitmeintheface直擊重點(diǎn)突破考點(diǎn)in②HereturnstotheEnglandteamafteralongabsence________internationalfootball.③Theteacheriswonderingwhysomanystudentsare________(absence)fromclass.(2)單句寫作①Hisfailureliesinhis__________________.他的失敗在于心不在焉。②Hisfrequent__________________workdidn'tgounnoticed.他的頻繁曠工還是引起了別人的注意。fromabsentabsenceofmindabsencefromwithsurroundingssurrounding(2)單句改錯①Shewassurroundingbystudentsaskingquestions.__________________________________________________________②Tomspenttheafternoonhikinginthesurroundhills.__________________________________________________________surrounding→surrounded

surround→surroundingensures/ensuredthat(2)句型轉(zhuǎn)換Shewouldhavetobeontreatmentforthenextsixmonthstoensurethatshewasfullyrecovered.→Shewouldhavetobeontreatmentforthenextsixmonthsto__________________________shewasfullyrecovered.makesurethatthat

todo

③Thecellphonewillberepairedfreewhenitis________guaranteewithouthumandamage.(2)單句寫作Goingoutwithfriends________________(必定會)cheeryouup.underisguaranteedtotoourselvesadjustments(2)句型轉(zhuǎn)換Sinceeverythingdevelops,wehavetomakeanadjustmenttothechangingsituation.→Sinceeverythingdevelops,wehaveto______________thechangingsituation.adjusttoof/aboutthat

informed④Instead,sheorganizedalotofactivitiesintheclasstogetmore________(inform)．(2)單句改錯Beesflyincirclestoinformtheirpartnersfoodordanger.__________________________________________________________informationfood前加of/aboutonCongratulationsmyself(2)句型轉(zhuǎn)換WeofferourcongratulationstoyouonyourpassingtheEntranceCollegeExamination.→We______________________yourpassingtheEntranceCollegeExamination.congratulateyouonforwithnegotiationembarrassedembarrassing

embarrassment(2)單句寫作I______________________howuntidythehousewas.家里太亂了，我感到難為情。feltembarrassedaboutuponstealing(2)單句寫作①Cafesfocusedaroundpsychology,history,andengineeringare____________(開始流行起來)．②Whenyou______________(看見)ateenagerwearingstrangeclothes,youmaythinkheisjusttryingtocatchyourattention.catchingoncatchsightofonpurposetothepurposewiththepurposeofontheotherhand②________________(一方面)theyhelptoimprovemywritingskillsandbroadenmyhorizons;ontheotherhand,theycanenrichmylifeandprovidemewithgreatfun.③Idon'twanttobuyit,________________(一則)Idon'tlikethecolor,and________________(另一則)thepriceistoohigh.OntheonehandforonethingforanotherthingItishopedthataresaidtohavebeenburied(2)單句寫作①________________nextyearwewillhaveagoodharvest.據(jù)預(yù)測，明年將是一個豐收年。②__________________itwillturnfinetomorrow.人們期望明天天會轉(zhuǎn)晴。ItispredictedthatItisexpectedthatwhichthatwhowhich→that

settled前加(should)bethat→whethertohave

Whether

orProvided/Providingthat課文回練升華運(yùn)用根據(jù)課文內(nèi)容，在空白處填入1個適當(dāng)?shù)膯卧~或括號內(nèi)單詞的正確形式。Asispredicted,Englishhasbeenthe__1__(globe)language,astheinternationalcompaniesgrowand__2__(communicate)advance.Beingabletospeakmorethanonelanguagecanmakeyoustandout.However,it'sdifficulttolearnEnglishinthe__3__(absent)ofanativelanguageenvironment.Somostofushavetorely__4__whatwecanlearnatschoolaspartoftheschoolcurriculum,which__5__(courage)teacherstocreatearichlanguageenvironmentintheclassroom.Qualityinputensuresqualityoutput,__6__itisspeakingorwriting.Buttoreallygetahead,youneedtodoextraworkoutsideoftheclassroom.Expertsgivesome__7__(suggest).Settingachievabletargets;listeningtoanEnglishsongafterreadingthewords.__8__(read)newsinEnglishafterwatchingitinyourownlanguage;watchingyourfavoriteDVDs;studyingwithyourfriendsandrewardingyourself.These__9__(recommend)areeasytoachieveandwellworththeextraeffort.Tostaydedicated,youneedtokeepinmind__10__youarelearningEnglish.globalcommunicationsabsenceonencourageswhethersuggestionsReadingrecommendationswhy基礎(chǔ)達(dá)標(biāo)自主訓(xùn)練答案：said這里是固定句型“itis＋動詞的過去分詞＋that從句”。Ⅰ.單句語法填空1．It'soften________(say)thathumanbeingsarenaturallyequippedtospeak.答案：Provided/Providing這里是連詞providing/providedthat“倘若”引導(dǎo)條件狀語從句。2．________(provide)thatwegetgoodweather,itwillbeapleasantholiday.答案：surroundings由設(shè)空前的形容詞new可知，應(yīng)填所給詞的名詞形式，結(jié)合句意，指“環(huán)境”，故填surroundings。3．Jenniferishavingahardtimegettingaccustomedtonew________(surround)inAustralia.答案：safety

ensuresth，結(jié)合設(shè)空前的our可知，應(yīng)用名詞作賓語。4．Iensuredour________(safe)bylockingthedoor.答案：informed

keepsbinformedofsth

“讓某人了解某事”。5．Bothradioandtelevisionkeepus________(inform)ofthenewsoftheday,instructusinmanyfieldsofinterest,andentertainuswithsinging,dancingandacting.答案：that設(shè)空處引導(dǎo)同位語從句修飾doubt，對其內(nèi)容進(jìn)行具體說明，且doubt前有否定詞，故填that。也可將其視為固定句式Thereisnodoubtthat“毫無疑問……”。6．Thereisnodoubt________hewillcomehereagain.答案：myself主語與賓語指同一人，形成互指，故用反身代詞。短語congratulateoneselfonsth

“為自己感到慶幸；感到幸運(yùn)”。7．Icongratulated________(I)onnarrowescape.答案：discussing這里是句型thereisnopoint(in)doingsth

“做某事沒有意義”。8．Sinceeverybodyisclear,thereisnopoint________(discuss)thequestionanyfurther.答案：with

negotiatewithsbonsth

“與……洽談……”。9．Thegovernmenthastonegotiate________theoppositionpartyonthenewregulations,whichwillcomeintoeffectnextmonth.答案：by

takesb＋介詞＋the＋身體部位。故填by。10．Thelittlepupiltookhisgrandma________thearmandwalkedheracrossthestreet.答案：providing/providedthatⅡ.單句寫作1．Iwillcome,________________(倘若)Iaminvited.答案：whichplacehehasgoneto2．Theyhavenoideaatall__________________________(他去了哪個地方)．答案：thereisnopoint(in)gettingangry3．Asweallknow,________________________.眾所周知，生氣是沒有用的。答案：Congratulationstoyouonyourpromotion！/Congratulateyouonyourpromotion!4．_____________________________________________________祝賀你升職！(congratulation)答案：However,scientistsstillwonderwhethercloningwillhelporharmusandwhereitisleadingus.5．______________________________________________________然而，克隆技術(shù)對人類有幫助還是有害，將來會把我們引向何方，科學(xué)家們對此依然不清楚。Ⅲ.語法填空TheHezhenisoneofthesmallestminoritiesinChina.EarlyHezhenpeopledevelopedmethods__1__producingclothes,beddingandthreadoutoffishskin.Butovertime,therehasbeenalossofHezhenculture,including__2__(make)clothingfromtheskinoffish.Besides,fewyoungHezhenwantedtolearntheskill.Fish-skinclothingisalsonot__3__Hezhenpeopleweartoday.Knowingthis,YouWenfeng,anow68-year-oldwoman,startedtoshareherknowledgewithlocalHanChinesewomeninthe1990s.HerfollowersalsolearntheYimakan,__4__kindofstorytellingthatusesbothspeechesandsongsintheHezhenlanguage.TheyalsomemorizesongssungbytheHezhenpeople.Forenvironmental__5__(protect),YouWenfenghasdecidedtobuyfishfromthemarketanduseaspecialsewingtoolandcottonthread.Thefirststepistoremovethefish'sskin__6__(cautious)anddryit.Theskinisthenrepeatedlypassedthroughwooden“teeth”tosoftenit.Theprocesstakesamonth,andsewingitthenrequiresabouttwenty__7__(many)days.Sofar,fishleather__8__(inspire)somehigh-endclothingdesignhouses,includingDiorandPrada,touseitintheirclothes.Butthematerial__9__(be)stillnotcommon.In2006,HezhenfishskinclothingwaslistedbyChinaasintangibleculturalheritage(非物質(zhì)文化遺產(chǎn)),whichmeansaspecialeffortismade__10__(preserve)thetradition.for/of

making

what

a

protection

cautiously

more

hasinspired

is

topreserve

1．考查介詞。此處表示赫哲人用魚皮制作衣服、被褥和線等物品的方法。methodof/fordoingsth

意為“做某事的方法”，故填for/of。2．考查非謂語動詞。including意為“包括”，是介詞，此處作介詞“including”的賓語，應(yīng)用動名詞。故填making。3．考查表語從句的連接詞。設(shè)空處引導(dǎo)表語從句，在從句中充當(dāng)賓語，此處表示“赫哲人今天穿著的衣服”。故填what。4．考查冠詞。akindof“一種……”，固定搭配。故填a。5．考查詞性轉(zhuǎn)換。根據(jù)設(shè)空處前面的形容詞environmental可知，設(shè)空處要用protect的名詞protection。故填protection。6．考查詞性轉(zhuǎn)換。根據(jù)設(shè)空前的“toremovethefish'sskin”可知，此處應(yīng)填副詞來修飾動詞remove，故填cautiously。7．考查限定詞。此處表示“這個過程需要一個月的時間，然后將其縫合起來再需要20天左右”。more在這里意為“更多的”。故填more。8．考查動詞的時態(tài)和主謂一致。根據(jù)本句中的“Sofar”可知，此處時態(tài)應(yīng)用現(xiàn)在完成時，且主語是“fishleather”，謂語動詞應(yīng)用第三人稱單數(shù)，故填hasinspired。9．考查主謂一致和動詞的時態(tài)。主語“thematerial”是第三人稱單數(shù)，謂語動詞應(yīng)用第三人稱單數(shù)；同時此處表示目前的狀態(tài)。故填is。10．考查非謂語動詞。makeaspecialefforttodosth

意為“努力去做某事”。故填topreserve。Ⅳ.短文改錯Asmythirdyearofhighschoollifehascome,Ifeltalittlestressful,becauseIwanttoenterabettercollege,andmyscoresworryme.Ihavemademymindtostudyharder.Firstly,Ineedtoimprovingmyweaksubjects.Idecidetogoovertheimportantknowledgesandaskmyclassmatesforhelp.MygoodfriendLilyisverypatient.Withherhelp,Iwillmakeagreatprogress.Secondly,theexampapershandouteverytime,Iwillscanmymistakesandmakesurewhattomakethemright.Finally,Iwillmakefullyuseofmysparetime.Ibelievetheaimwillmakeyoustronger.課后作業(yè)Ⅰ.完形填空(2021·全國乙卷)Simplysayingthankyoudoesn'tseemenoughincertainsituations.Iwasconsideringthiswhileworkingasa__1__justafewweeksago.Anditcametomethenhowmucheasieritwouldbeifwehadarangeofwordsthatexpressdifferent__2__ofgratitude(感謝).

Mythoughtsweresoon__3__.Wehadawomanpatientwhowas__4__fromakneereplacementoperation.Oneafternoon,while__5__togetintobedshecollapsed(倒下)fromwhatwas__6__discoveredtobeaheartattack.Thecollapsewasdisastrous,__7__theemergencymedicalteamandgoodteamwork.Butsherecovered,though__8__，

andwasreadyfordischarge(出院)afterfourweeks.Shewas__9__foreverythingthatthemedicalandnursingteamhaddoneforher.Onherdayofdischarge,wesharedinher__10__atherrecovery.Asshewas__11__shewaseagertosay__12__toeachofusinthenursingteam.Whenshe__13__onenurse,shetriedtopressafive-poundnoteintoherhand.Mycolleague__14__toacceptit,sayingthatwewerealljust__15__ourjob.Thepatientlookedpuzzled,andthen__16__：“Ohthisisn'tforthe__17__Ihad.Itakethatasa__18__.No,thisisforsettingmyhairyesterday.”Andthereyouhaveit.Tomanypeople,__19__livesispartofthejobbutstylinghairisan__20__andshouldberewarded.篇章導(dǎo)讀：本文是一篇記敘文。有時，僅僅一句感謝并不足以表達(dá)我們的感激之情。作者認(rèn)為倘若我們掌握了一系列表達(dá)不同等級感謝的詞，那這個難題就迎刃而解了。答案：C根據(jù)下文“Whenshe__13__onenurse...Mycolleague__14__toacceptit”可推斷，作者是一名護(hù)士。

cleaner“清潔工”；chemist“化學(xué)家，藥劑師”；nurse“護(hù)士”；doctor“醫(yī)生”。故選C。1．A.cleaner B．chemistC．nurse D．doctor答案：A根據(jù)語境可知，我們?nèi)绻麜褂靡幌盗斜磉_(dá)不同等級的感謝的詞，就可以盡情表達(dá)我們內(nèi)心的感謝了。grade“等級”；meaning“含義”；need“需要”；expectation“期望，預(yù)料”。故選A。2．A.grades B．meaningsC．needs D．expectations答案：B根據(jù)下文女患者對護(hù)士的做法可知，作者的想法很快經(jīng)受了檢驗(yàn)。brushaside“漠視”；puttothetest“經(jīng)受考驗(yàn)，經(jīng)受檢驗(yàn)”；bringunderdiscussion“討論”；takeintoaccount“考慮”。故選B。3．A.brushedasideB．puttothetestC．broughtunderdiscussionD．takenintoaccount答案：D句意：我們有一名女患者，她做了膝關(guān)節(jié)手術(shù)，正在恢復(fù)中。depart“離開，出發(fā)”；escape“逃跑，逃脫”；retire“退休”；recover“恢復(fù)”。故選D。4．A.departing B．escapingC．retiring D．recovering答案：A根據(jù)上文可知，這名患者膝蓋有傷，因此她試著自己上床睡覺。attempt“試圖”；choose“選擇”；pause“暫停”；promise“承諾，保證”。故選A。5．A.attempting B．choosingC．pausing D．promising答案：A根據(jù)語境可推知，她最終因心臟病發(fā)作而昏倒。eventually“最終”；

fortunately“幸運(yùn)的是”；casually“隨便地，偶然地”；secretly“秘密地”。故選A。6．A.eventually B．fortunatelyC．casually D．secretly答案：B句意：她的昏倒是災(zāi)難性的，需要急診醫(yī)療隊(duì)和良好的團(tuán)隊(duì)合作。

assess“評估，評定”；require“需要”；form“形成”；

prove“證實(shí)”。故選B。7．A.assessing B．requiringC．forming D．proving答案：C根據(jù)下文的“fourweeks”可知，康復(fù)過程是緩慢的。slightly“稍微”；accidentally“偶然地，意外地”；slowly“緩慢地”；happily“開心地”。故選C。8．A.slightly B．a(chǎn)ccidentallyC．slowly D．happily答案：A根據(jù)第一段最后一句中的“gratitude(感謝)”和下文中她的行為可推知，她感激醫(yī)護(hù)人員為她所做的一切。

grateful“感激的”；thoughtful“周到的，體貼的”；sorrowful“悲傷的”；fearful“擔(dān)心的，害怕的”。故選A。9．A.grateful B．thoughtfulC．sorrowful D．fearful答案：B句意：她出院時，我們分享她康復(fù)的喜悅。surprise“驚訝”；delight“喜悅”；curiosity“好奇心”；disappointment“失望”。故選B。10．A.surprise B．delightC．curiosity D．disappointment答案：D根據(jù)上文可知，在她的出院日，因此她要離開(leave)。故選D。11．A.operating B．thinkingC．hesitating D．leaving答案：C根據(jù)上文可知，她要出院了，因此對我們說再見(goodbye)。故選C。12．A.sorry B．helloC．goodbye D．yes答案：A句意：當(dāng)她到達(dá)一位護(hù)士身邊，她試圖塞給那位護(hù)士一張五英鎊的紙幣。

reach“到達(dá)”；consult“咨詢，請教，商量”；introduce“介紹，引見”；persuade“說服，勸說”。故選A。13．A.reached B．consultedC．introduced D．persuaded答案：D根據(jù)下文“sayingthatwewerealljust__15__ourjob”可知，作者的同事拒絕接受那張紙幣。

wishtodosth

“希望做某事”；pretendtodosth

“假裝做某事”；failtodosth

“未能做某事”；refusetodosth

“拒絕做某事”。故選D。14．A.wished B．pretendedC．failed D．refused答案：B作者的同事說他們都只是做了分內(nèi)的事。enjoy“享受……的樂趣，欣賞，喜愛”；do“做”；secure“(尤指經(jīng)過努力)獲得，取得，實(shí)現(xiàn)”；start“開始”。故選B。15．A.enjoying B．doingC．securing D．starting答案：C根據(jù)語境可知，這位患者回答道。repeat“重復(fù)”；recite“背誦”；reply“回答；回復(fù)”；report“報道”。故選C。16．A.repeated B．recitedC．replied D．reported答案：D根據(jù)上文可知，患者在醫(yī)院受到了照顧。courage“勇氣”；patience“耐心”；duty“職責(zé)”；care“照顧”。故選D。17．A.courage B．patienceC．duty D．care答案：B句意：我認(rèn)為那理所當(dāng)然。goal“目標(biāo)”；given“可以肯定的基本事實(shí)”；push“努力，鼓勵”；greeting“問候，致意”。故選B。18．A.goal B．givenC．push D．greeting答案：C根據(jù)常識可知，挽救生命是醫(yī)護(hù)人員工作的一部分。risk“冒險”；change“改變”；save“挽救”；build“培養(yǎng)，發(fā)展”。故選C。19．A.risking B．changingC．saving D．building答案：D根據(jù)常識可知，做頭發(fā)并不是醫(yī)護(hù)人員的分內(nèi)之事。honour

“榮幸，尊敬”；ability“能力”；opening“開始，開端”；extra“額外的事”。故選D。20．A.honour B．a(chǎn)bilityC．opening D．extraAtthecoreofLancomisaworld-classeffectivemethodthatenhanceslanguagelearningwithadvancedtechnology.Examplesanddialoguesarerecordedwithrealnativespeakersinsteadofautomaticcomputers.Lancomtrainsyourbraintolearnefficiently,soyouabsorbmoreinformationwhileintheappandcontinuelearningoutsideofit.Theappmakesourpracticallanguagelessonsavailablewhereverandwhenever.Weworkdirectlyforourlearners,notforanythirdparty.Andit'sallsupportedbyanefficientcustomerserviceteam,availablethroughtelephone,emailandonlinechat.Millionsoflearnershavetheirownstoriesandtheirownreasonsforlearninganewlanguage.Lancomcaresaboutyouandaddressesyourindividuallearningtype.Lancomistheonlyproducttooffercoursestailoredtoyournativelanguage,buildingongrammarandwordsyoualreadyknow.Ourcontentisaboutreal-lifetopicsthatarerelevantbecauseweknowwhatmatterstoyouiswhatsticksbest.YouwillfinditveryrewardingtolearnwithLancom.

答案：C細(xì)節(jié)理解題。根據(jù)第一段第三句可知，在人工智能專家、藝術(shù)設(shè)計(jì)師和文化研究者的建議下，我們的多語言專家為Lancom在語言學(xué)習(xí)領(lǐng)域提供了巨大的創(chuàng)新潛力。由此可知，語言專家為Lancom提供學(xué)習(xí)創(chuàng)新的巨大潛力。故選C。1．WhocanprovideLancomwithahugepotentialforinnovationinlearning?A．Cultureresearchers.B．AIspecialists.C．Languageexperts.D．Artdesigners.答案：B細(xì)節(jié)理解題。根據(jù)第二段第一句“AtthecoreofLancomisaworld-classeffectivemethodthatenhanceslanguagelearningwithadvancedtechnology.”可知，Lancom的核心是一種世界級的有效方法，利用先進(jìn)的技術(shù)來增強(qiáng)語言學(xué)習(xí)。由此可知，Lancom應(yīng)用程序的核心是有效的方法。故選B。2．WhatliesatthecoreoftheLancomapp?A．Aflexiblesystem.B．Aneffectivemethod.C．Thebrain-trainingtechnique.D．Theinformativecontent.答案：A細(xì)節(jié)理解題。根據(jù)第三段第三句“Lancomistheonlyproducttooffercoursestailoredtoyournativelanguage,buildingongrammarandwordsyoualreadyknow.”可知，Lancom是唯一一款根據(jù)你的母語量身定制課程的產(chǎn)品，以你已經(jīng)掌握的語法和單詞為基礎(chǔ)。由此可知，Lancom聲稱它的個性化課程是獨(dú)一無二的。故選A。3．Lancomclaimsthatitisuniqueinits________.A．personalisedcoursesB．multiplelanguagesC．pricingpolicyD．serviceteamB(2022·山西省8大重點(diǎn)學(xué)校聯(lián)考)WanttoprotectagainsttheeffectsofAlzheimer's?Alzheimer'sdiseaseisaconditioninwhichaperson'sthinkingabilityandmemorygraduallydeclines.Recentbrainresearchshowsthatbilingualpeople'sbrainsfunctionbetterandforlongerafterdevelopingthedisease.PsychologistEllenBialystokandhercolleaguesatYorkUniversityinTorontorecentlytestedabout450patientswhohadsufferedfromAlzheimer'sandhadsimilarlevelsofcognitiveimpairment.Halfofthesepatientswerebilingualandhalfspokeonlyonelanguage.TheresearchersfoundthatthosewhowerebilingualhadsufferedfromAlzheimer'saboutfouryearslater,onaverage,thanthosewhospokejustonelanguage.Andthebilingualpeoplereportedtheirsymptomshadbegunaboutfiveyearslaterthanthosewhospokeonlyonelanguage.“Whatwe'vebeenabletoshowisthatthebilingualshavebeenabletodealwiththedisease，”

Bialystoksaid.ThensheaskedtheAlzheimer'spatientstohavebrainscans.Aswasexpected,brainscansoftheAlzheimer'spatientsshowedthat,amongpatientswhowerefunctioningatthesamelevel,thosewhowerebilingualhadmoreadvancedbraindeteriorationthanthosewhospokejustonelanguage.Butthisdifferencewasn'tapparentfromthepatients'behaviors,ortheirabilitiestofunction.Thebilingualpeopleactedlikemonolingualpatientswhosediseasewaslessadvanced.

Theresearchersthinkbilingualpeopleexerciseabrainnetworkmore.Itincludesthefrontalregionsofthebraintiedtomemory,languageandlearning.“Oncethediseasebeginstocompromisetheregionsofthebrain,bilingualscancontinuetofunctionandthebrainbecomesmoreresistanttothedamagecausedbyaging，”

Bialystoksaid.Also,frequentlyexercisingthisbrainnetworkcanhelpthefrontalregionscommunicatebetterwithoneanother.Asaresult,bilingualpeopleareabletothinkmoreclearlythantheaveragepersonwithAlzheimer's.Moreover,otherresearchsuggeststhatthesebenefitsofbilingualismapplynotonlytothosewhoareraisedfrombirthspeakingasecondlanguage,butalsotopeoplewhotakeupaforeigntonguelaterinlife.篇章導(dǎo)讀：本文是一篇說明文。研究發(fā)現(xiàn)，學(xué)習(xí)第二語言能預(yù)防老年癡呆癥。文章主要介紹了該項(xiàng)研究并分析了造成這一現(xiàn)象的原因。答案：B細(xì)節(jié)理解題。根據(jù)第二段最后兩句“Theresearchersfound...spokeonlyonelanguage.”可知，雙語病人在測試中與其他病人的不同在于他們的癥狀